<!-- ignore the following lines, they are not important to this demo -->
<jigsaw-demo-description [summary]="summary" [content]="description">
</jigsaw-demo-description>


<!-- start to learn the demo from here -->
<j-cascade [data]="areas" (selectedItemsChange)="parseMessage($event)" width="400">
</j-cascade>

<p>选择的区域是：{{message}}</p>
